A large frosted-gray marmot of high-elevation talus. Their loud whistles echo across alpine cirques — earning them the nickname "whistler" and lending their name to Whistler, BC.

§ Quick facts

SizeBody 50–60 cm; tail 17–25 cm
Weight7–14 kg
LifespanWild 6–10 years
OrderRodentia
FamilySciuridae

§ Encyclopedia

The hoary marmot is a species of marmot that inhabits the mountains of northwest North America. Hoary marmots live near the tree line on slopes with grasses and forbs to eat and rocky areas for cover.

Source: Wikipedia — Hoary marmot Licensed under CC BY-SA 4.0

§ Identification

Field marks. Large stocky marmot with frosted gray coat; black-tipped tail.

Similar species. Other marmots (yellow-bellied, Olympic, Vancouver Island).

Voice. Loud whistles, especially as alarm calls.

§ Diet & behavior

Diet. Grasses, sedges, flowers, occasional insects.

Behavior. Among the largest US marmots. Hibernates 8–9 months annually. State mammal of Alaska.

§ Range

Alaska, Yukon, BC, Alberta, northern Cascades

§ Habitat

Alpine and subalpine meadows, talus slopes

§ Threats

Climate-driven alpine habitat shifts, ski-area development, increased recreational pressure.

§ Conservation status

According to the IUCN Red List, the hoary marmot is currently classified as Least Concern.

§ What helps

Support alpine wilderness protection. Stay on trails to avoid disturbing burrows. Support climate action.

Support our work More ways to help

§ Further reading

§ Sources cited

  • Alaska Department of Fish and Game
  • American Society of Mammalogists
  • IUCN Red List 2016